After more than 10 years in development, Regeneron secured a landmark approval for its monoclonal antibody garetosmab, now commercially known as Pasatru. | Regeneron's Pasatru has crossed the finish line with an FDA approval after more than ten years in development. The drug is only the second approved treatment for FOP, an ultrarare genetic condition that causes patients' soft tissues to turn to bone.

Ultra-rare fibrodysplasia ossificans progressiva now has its second approved drug

A Regeneron drug that treats an ultra-rare disease that causes bone to form where it's not meant to be has won approval.